1. With the VS2400 on, open the CDR tray and insert the CD, then close the tray.
2. With the CD inside the CDR, power the VS2400 off (don't restart, be sure to shut down), then power the unit back on.
3. Follow the prompts to confirm the update process.

Updating the OS of the VS2400 will not erase any songs or files. It will simply update the operating system.